# CVE-2026-114390: Chamilo LMS missing authorization in legacy AJAX handlers

Source: https://junglewise.ai/threats/cve-2026-114390-chamilo-lms-from-2-0-0-alpha-1-before-2-0-0-rc-3-contains-a  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-21. Updated: 2026-10-21  
License: CC BY 4.0 with a link back

CVE-2026-114390 · Severity: medium · CVSS 5.3 · Published 2026-10-21

Chamilo LMS is a learning management system used by educational institutions to deliver online courses and track student progress. Versions 2.0.0-alpha.1 through 2.0.0-RC.2 contain authorization flaws in AJAX handlers that allow unauthenticated or low-privilege users to access sensitive data including other students' names, certificate PDFs, and grades. An attacker could harvest learner information and confidential academic records without proper permissions.

Technologies: [Chamilo Lms](https://junglewise.ai/threats/technologies/chamilo-lms). Vendors: [Chamilo](https://junglewise.ai/threats/vendors/chamilo).

## Quick answers

**Is CVE-2026-114390 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-114390 being exploited in the wild.

**How severe is CVE-2026-114390?** Medium severity, with a CVSS score of 5.3, published 21 October 2026.

**Which products and versions are affected?** Chamilo Lms 2.0.0-alpha.1 to 2.0.0-RC.2.

**Is there a fix for CVE-2026-114390?** Yes: fixed in 2.0.0-RC.3. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-114390 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-114390?** Check whether you run Chamilo Lms at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 2.0.0-RC.3

## Technical details

Multiple AJAX endpoints in public/main/inc/ajax/ (course.ajax.php, gradebook.ajax.php) lack proper authorization checks, allowing any user to invoke actions like get_users_by_group_course, user_by_all_roles, and export_all_certificates. The vulnerability requires network access and can be exploited remotely via HTTP requests without authentication or with low-privilege credentials. Attackers gain unauthorized access to personally identifiable information and confidential academic records.

## Affected products

- Chamilo Chamilo LMS 2.0.0-alpha.1 to 2.0.0-RC.2

## Timeline

- 2026-10-21: disclosed

## References

- [https://github.com/chamilo/chamilo-lms/blob/v2.0.0-RC.2/public/main/inc/ajax/course.ajax.php](https://github.com/chamilo/chamilo-lms/blob/v2.0.0-RC.2/public/main/inc/ajax/course.ajax.php)
- [https://github.com/chamilo/chamilo-lms/blob/v2.0.0-RC.2/public/main/inc/ajax/gradebook.ajax.php](https://github.com/chamilo/chamilo-lms/blob/v2.0.0-RC.2/public/main/inc/ajax/gradebook.ajax.php)

## Related threats

- [Chamilo LMS SQL injection via groupOp parameter](https://junglewise.ai/threats/cve-2026-45146-chamilo-lms-is-an-open-source-learning-management-system-prior-to)
- [Chamilo LMS unsafe deserialization in career data](https://junglewise.ai/threats/cve-2026-45145-chamilo-lms-is-an-open-source-learning-management-system-prior-to)
- [Chamilo LMS stored XSS in user profile fields](https://junglewise.ai/threats/cve-2026-45144-chamilo-lms-is-an-open-source-learning-management-system-from-2-0)
- [Chamilo LMS CSRF in skill management AJAX](https://junglewise.ai/threats/cve-2026-45141-chamilo-lms-is-an-open-source-learning-management-system-prior-to)
- [Chamilo LMS arbitrary code execution in HTML_QuickForm](https://junglewise.ai/threats/cve-2026-44344-chamilo-lms-is-an-open-source-learning-management-system-in-the-1)